// Copyright 2020 newtbig Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package containers

type IteratorWithIndex interface {
	Next() bool
	Value() interface{}
	Index() int
	Begin()
	First() bool
}

type IteratorWithKey interface {
	Next() bool
	Value() interface{}
	Key() interface{}
	Begin()
	First() bool
}

type ReverseIteratorWithIndex interface {
	Prev() bool
	End()
	Last() bool
	IteratorWithIndex
}

type ReverseIteratorWithKey interface {
	Prev() bool
	End()
	Last() bool
	IteratorWithKey
}
